1-    Fascioliasis in the Sudan : Epidemiology, pathogenesis and control. Financed by The International Foundation for Science, National Council of Research and the University of Khartoum, (1982-1985). Principal investigator.

2-     Use of ionizing radiation in the development of vaccines against Fasciola hepatica and Schistosoma bovis inSudanese cattle, sheep and goats. Financed by the International Atomic Energy Agency, University of Khartoum and National Council of Research. (1982-1985). Principal investigator.

3-     Studies on resistance to bovine schistosomiasis in Sudanese cattle Financed by the WHO. (1982-1985). Member of the research team.

4-     Clinicopathological and toxicological effects of some pesticides, fungicides and herbicides on sheep and rats. Financed by the Research Centre of the College of Agriculture and Veterinary Medicine, King Saud University (1988-1989). Member of the research team.

5-     Studies on some cases of disease caused by internal and external parasites of camels in Gassim Region. Financed by King Abdul Aziz City for Science and Technology (1992-1995). Member of the research team.

6-    Comparative toxicity of two organphosphorus compounds (Diazinon and Malathion) in sheep. Financed by the Research Centre of the College of Agriculture and Veterinary Medicine, King Saud University (1997 -1999) . Member of the research team

7-    Efficacy of Calatropis procera (latex) against Haemonchus contortus in Najdi sheep. Financed by the Research Centre of the College of Agriculture and Veterinary Medicine, (1999 – 2001). Member of the research team.

8-    Efficacy of Calatropis procera (latex) against Eimeria ovinoidalis in sheep. Financed by the Research Centre of the College of Agriculture and Veterinary Medicine, King Saud University (1999-2001). Member of the research team.

9-    Clinico-pathological effects of feeding high level dates rations to Najdi lambs .Financed by the Research Centre of the College of Agriculture and Veterinary Medicine, King Saud University.(2002-2003).Principal investigator.

10-   Effect of zinc injection on the immunity against abscess disease. Financed by The Research Centre of the College of Agriculture and Veterinary Medicine, Qassim University (2007). Member of the research team.